Lotte Chemical Corporation

Hyundai Motor Company

Kia Motors Corporation

Automobile Industrial Ace

You Jung Lee

Won Young Kim

Young Koan Ko

Dae Gun Kim

Kyo Min Lee

Won Sik Kim

Hyun Kyung Kim

Jeong Min Cho

Jong Wook Lee

Yeun Hee Hwang

Taegbong Cho

Byungkyu Yoon

Tae Wook Kim

Provided is a high-pressure tank wound with a hoop layer and a helical layer. According to the present invention, the high-pressure tank includes: a liner which includes a cylinder portion and two dome portions respectively formed at both ends of the cylinder portion; and a composite material layer which includes a hoop layer and a helical layer, wound on an outer circumferential surface of the liner, wherein the helical layer includes a twist portion wound on a junction portion of the cylinder portion and the dome portion, and the twist portion is twisted and wound while wrapping on an end portion of the hoop layer when the helical layer passes by the hoop layer and is then wound toward the dome portion.

High pressure tank having hoop layer and helical layer wound thereon and method of manufacturing same

The present invention discloses a knob cap for a high-pressure tank including a first knob cap portion having a coupling groove coupled to a knob of a liner of the high-pressure tank in a lower surface, including a peripheral wing portion extending outward to be in contact with a surface of the liner to outside of a lower portion, and having a column portion in the shape of a column extending upward in a center; and a second knob cap portion integrally coupled with the first knob cap portion, having the column portion of the first knob cap portion inserted into a hollow, and including a plurality of inner grooves in the shape of a column having an upper end opened outside of the hollow and extending downward.

Knob cap for high-pressure tank

The present invention relates to a knob cap for a high-pressure tank including a coupling groove portion corresponding to a knob of a liner of the high-pressure tank formed in a lower surface of a body; a peripheral wing portion extending outward in a lower end of an outer circumferential surface of the body to be in contact with a surface of the liner; and a thickness conversion portion formed in the outer circumferential surface of the body to change a thickness between a center line and the outer circumferential surface.

The present invention relates to a sealing apparatus for a high-pressure tank and a high-pressure tank comprising same, wherein the sealing apparatus comprises: a liner configured to accommodate a high-pressure fluid; a connection boss which is a metallic connector provided at an inlet of the liner and includes a first connection boss part coupled to an inner surface of the inlet and a second connection boss part coupled to an outer surface of the inlet and having a tapered shape with a relatively narrow upper side and a relatively wide lower side; and a coupling member configured to come into surface contact with an outer surface of the second connection boss part and having a tilted surface corresponding to a shape of the second connection boss part so that an inner diameter of a lower side is larger than that of an upper side.

Sealing apparatus for high-pressure tank and high-pressure tank comprising same

A bumper beam for a vehicle is attached to a front or rear portion of the vehicle, includes a beam main body having a front surface opposite to a surface to be attached to the vehicle, the front surface being curved outwardly, and the beam main body having a C-shaped section opened outwardly toward the front surface, and stay portions formed on both sides of the beam main body, each of the stay portions having an opening at a rear surface thereof. The beam main body includes a fiber reinforced plastic.

Bumper beam for a vehicle

Growing community of inventors

Daejeon, South Korea

You Jung Lee